Study on Yersinia enterocolitica isolated from pigs and rodents in Jiangxi Province,China
YANG Meng1, WANG Peng1, YUAN Hui1, LIU Xiao?qing1,XU Xiao?qian1, XIONG Chang?hui1, HUANG Xing?kui1, DUAN Ran2, WANG Xin2
1.Jiangxi Province Center for Disease Control and Prevention, Nanchang 330029,China; 2.National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention,Beijing 102206,China
Abstract：To understand the distribution and pathogenic characteristics of Yersinia enterocolitica in different animal hosts in Jiangxi Province, and provide scientific basis for Y. enterocolitica prevention and control. Specimens from pig and rats were collected and screened for foxA gene by PCR. PCR positive samples were then isolated for Y. enterocolitica, which were identified for serotype, biotype and virulence genes. Meanwhile, all strains were analyzed by pulsed field gel electrophoresis (PFGE). A total of 79 Y. enterocolitica strains were isolated from 1,018 samples with the total positive rate of 7.76% (79/1018). Positive isolation rate for pig was 20.86% (63/302) with O:3 serotype; positive isolation rate for rat was 2.24% (16/716) with various serotypes of O:5, O:8 and untyped, and 1A biotype. All pathogenic strains were originated from pig, accounting for 79.75%(63/79)strains, 59 of which were (ystA+, ystB-, yadA+, virF+, ail+, rfbc+) and 4 were(ystA+、ystB-、yadA-、virF-、ail+、rfbc+). All non?pathogenic strains were from rats, accounting for 20.25%(16/79), 12 of which were (ystA-,ystB+, yadA-, virF-, ail-, rfbc-) and 4 were (ystA-,ystB-, yadA-, virF-, ail-, rfbc-). Pathogenic O∶3 strains formed six PFGE types, among which K6GN11C30021 was the main type, accounting for 80.95% (51/63) strains. Among different animal hosts in Jiangxi Province, the main carriers of pathogenic Y. enterocolitica strains are pigs. Therefore, surveillance of Y. enterocoliticain in pigs in Jiangxi Province should be strengthened.
杨梦, 王鹏, 袁辉, 刘晓青, 徐晓倩, 熊长辉, 黄星魁, 段然, 王鑫. 江西省猪和啮齿动物宿主小肠结肠炎耶尔森菌病原学研究[J]. 中国人兽共患病学报, 2020, 36(7): 544-548.
YANG Meng, WANG Peng, YUAN Hui, LIU Xiao?qing,XU Xiao?qian, XIONG Chang?hui, HUANG Xing?kui, DUAN Ran, WANG Xin. Study on Yersinia enterocolitica isolated from pigs and rodents in Jiangxi Province,China. Chinese Journal of Zoonoses, 2020, 36(7): 544-548.
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2020, Vol. 36 
